In the following passage, some words have been deleted. Fill in the blanks with the help of the options given. Select the most appropriate option for each number.
A new swarm of locusts entered Rajasthan’s Jaisalmer on Sunday. This is the fifth swarm to (1)______ the state in four days from (2)______ western border with Pakistan. Since the first locust swarm (3)______ the state’s Sri Ganganagar district on April 11, as many as 25 swarms (4)______ entered Rajasthan. Some swarms moved to Chhattisgarh and Madhya Pradesh,(5)______ which agricultural departments issued advisories to farmers asking them to be on high alert.
Select the most appropriate option to fill in the blank no. 4.